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Home >> Infiniti >> 2010 >> FX50 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (VK50VE) - DTC U0101, U0113, U1003, U1001, U1024 & P0011 Through P0159 >> DTC P0116: ECT Sensor >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

NOTE: If DTC P0116 is displayed with P0117 or P0118, first perform the trouble diagnosis for DTC P0117, P0118. Refer to DTC LOGIC .
DTC DETECTION LOGIC TABLE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0116 Engine coolant temperature sensor circuit range/performance Engine coolant temperature signal from engine coolant temperature sensor does not fluctuate, even when some time has passed after starting the engine with pre-warming up condition.
  • Harness or connectors (High or low resistance in the circuit)
  • Engine coolant temperature sensor